“Omicron is spreading rapidly in countries with high levels of population immunity and it remains uncertain to what extent the observed rapid growth rate can be attributed to immune evasion, intrinsic increased transmissibility or a combination of both,” WHO said.
The Omicron variant has now been identified in 89 countries and is spreading significantly faster than the Delta variant in places where community transmission is high, with a doubling time between 1.5–3 days, the WHO has said. In its ‘Enhancing Readiness for Omicron (B.1.1.529): Technical Brief and Priority Actions for Member States’ report, the WHO said, “Omicron is spreading rapidly in countries with high levels of population immunity and it remains uncertain to what extent the observed rapid growth rate can be attributed to immune evasion, intrinsic increased transmissibility or a combination of both,” it said.
